Don't know, no one test that, the antenna is used for a wireless router, not sure if it can be used on a adapter. And normally, if you want to change the antenna, you need to change all the antennas...

aandh wrote Hi, I have the same issue!!! Can you share the beta firmware? THX Hi, here is the beta: http://support.tp-link.com/f/e7d21a978c/?dl=1

what is the ip address of your network? you may need to change lan ip of 841 to the same range as yours. for example, if your network is in 192.168.1.X, you can change 841 to 192.168.1.252.

does your kindle see the wireless signal? ask for a password?

i am afraid you have to reconfigure them. press the button for 5 seconds then you can add it using the app but keep the settings when kasa asks you do you want to keep it

no idea, but you can email tp-link support.